Abstract
Cell culture has long been a valuable tool for studying cell behaviour. Classical plastic substrates are two-dimensional, and usually promote cellular proliferation and inhibit differentiation. Understanding cell behaviour within complex multicellular tissues requires the systematic study of cells within the context of specific model microenvironments. A model system must mimic, to a certain degree, the in vivo situation, but, at the same time, can significantly reduce its complexity. There is increasing agreement that moving up to the third dimension provides a more physiologically-relevant and predictive model system. Moreover, many cellular processes (morphogenesis, organogenesis and pathogenesis) have been confirmed to occur exclusively when cells are ordered in a three-dimensional (3D) manner. In order to achieve the desired in vivo phenotype, researchers can use microporous membranes for improved in vitro cell culture experiments. In the present review, we discuss the applications of filter-well technology for the advanced 3-D cell culture of human pulmonary cells.
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